CN102173713A - Ardealite-based plastering gypsum green process - Google Patents
Ardealite-based plastering gypsum green process Download PDFInfo
- Publication number
- CN102173713A CN102173713A CN 201110054802 CN201110054802A CN102173713A CN 102173713 A CN102173713 A CN 102173713A CN 201110054802 CN201110054802 CN 201110054802 CN 201110054802 A CN201110054802 A CN 201110054802A CN 102173713 A CN102173713 A CN 102173713A
- Authority
- CN
- China
- Prior art keywords
- gypsum
- principle
- ardealite
- phosphogypsum
- percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
Abstract
The invention relates to a technology for producing a green environmentally-friendly construction material by utilizing industrial side product gypsum, in particular to a plastering gypsum producing process by utilizing ardealite. In the process, the plastering gypsum is an energy-saving product instead of cement and lime mortar, is a wall plastering material which is capable of regulating indoor environment and is environmentally-friendly and healthy, and has wide developing prospect. The plastering gypsum comprises the following components in percentage by weight: 97 percent of ardealite-based construction gypsum, 1 percent of sodium citrate, and 2 percent of bentonite. The green process has the advantages of: (1) resource and energy consumption minimization principle; (2) environmental pollution zero load principle; (3) process design innovation principle; (4) product health and comfort principle; (5) economical reasonability principle; and (6) low price, good water retention and environment filtration, adsorption and purification of a bentonite water-retaining agent.
Description
Technical field
The invention belongs to industry by-product gypsum and produce the Green environmental-protection building material technology, phosphogypsum is produced the brushing gypsum friendly process.
Background technology
Phosphogypsum is in long-term stacking process, not only take soil, a large amount of farmland, to the environment main harm: (1) because geologic origin contains multiple radioelement such as radium, thorium and their descendant in the phosphatic rock, farm crop and resident is on every side produced activity build pollute.(2) fluorine and titanium pigment drench with rain with precipitation and infiltrate soil and water body, pollute.(3) under the exsiccant weather condition, irritating smell and fine powder that the acidic substance volatilization produces form atmospheric pollution.
Brushing gypsum is the less energy-consumption wall plastering material advocated energetically of countries in the world in recent years.Compare with sand-cement slurry with lime mortar, brushing gypsum is regulated indoor humidity, good water-retaining property, and cohesive force is strong, the operating efficiency height.The smooth exquisiteness of metope, non-scale, good decorative property.Produce the subject matter that brushing gypsum exists with phosphogypsum: the one, phosphogypsum does not carry out measuring radioactivity of building materials, and safety performance is unreliable.The 2nd, continue to use the detrimental impurity in the external tradition washing art breading phosphogypsum, easily cause secondary pollution; The 3rd, the product performance instability; The 4th, adopt industrial chemicals to cost an arm and a leg no price competitive edge.Therefore standardization, science, the energy-saving and cost-reducing material of construction of feature of environmental protection development and use phosphogypsum production are necessary.
From the angle of resource, the energy and environment development and use phosphogypsum, the phosphogypsum based plastering gypsum friendly process has been proposed, this processing method is simple, standard, science, less energy-consumption, non-secondary pollution.
Summary of the invention
1 phosphogypsum dehydration preparation plaster of Paris technology
Impurity such as the phosphorus that phosphogypsum contains, fluorine influence performances such as time of coagulation of Phosphogypsum based Gelation Material and intensity.Therefore the method that adopts pre-treatment to purify phosphogypsum is in the lime and grinding.180 ℃ of phosphogypsum dehydration preparation semi-hydrated gypsum calcining temperatures, insulation 2h uses behind ageing 〉=7d.
Plaster of Paris pi of strength: folding strength 3.9MPa, ultimate compression strength 8.9MPa.
2 brushing gypsum prescriptions are formed and weight percentage:
Gypsum 97% is built in phosphogypsum capital construction, Trisodium Citrate 1%, wilkinite 2%.
Adopt inorganic mineral wilkinite water-holding agent with low cost.Mixture has good plasticity-, water-retentivity, cohesiveness.Objectionable constituent in the wilkinite stratiform structure Filtration Adsorption materials for wall.
Embodiment
At first phosphogypsum meets GB6566-2001 " radiation protection standards for construction material " and GB6763-2000 " material of construction industrial residue radioactive substance limitation standard " requirement through radioassay.Adopt in the lime and the grinding pretreatment technology, 3-5% unslaked lime is mixed the back grinding with phosphogypsum, fineness control 0.08mm square hole sieve tails over less than 6%, at 180 ℃ of drying and dewaterings, and insulation 2h.Use through behind digestion time 〉=7d, plaster of Paris has the high characteristics of intensity.Gypsum 97% is built in capital construction according to the prescription phosphogypsum, Trisodium Citrate 1%, and wilkinite 2% is mixed with brushing gypsum.Wherein Trisodium Citrate is dissolved in the water, pours into then to mix in plaster of Paris and the wilkinite compound to get final product.Brushing gypsum performance index by the present invention's preparation are as follows:
Advantage of the present invention:
(1) resource, energy resource consumption minimization principle; (2) environmental pollution zero load principle; (3) technological design creative principle; (4) product health, comfortableness principle; (5) economic rationality principle. (6) cheap, the good water-retaining property of bentonite water-loss reducer, the adsorption cleaning of filtration environmental performance is arranged.
Claims (3)
1. phosphogypsum based plastering gypsum friendly process is characterized in that brushing gypsum prescription and weight percentage:
Gypsum 97% is built in phosphogypsum capital construction
Trisodium Citrate 1%
Wilkinite 2%.
2. according to the described friendly process of claim 1, it is characterized in that water-holding agent is a wilkinite.
3. according to the described friendly process of claim 1, it is characterized in that phosphogypsum dehydration preparation semi-hydrated gypsum calcining temperature is 180 ℃, insulation 2h uses behind ageing 〉=7d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110054802 CN102173713A (en) | 2011-03-09 | 2011-03-09 | Ardealite-based plastering gypsum green process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110054802 CN102173713A (en) | 2011-03-09 | 2011-03-09 | Ardealite-based plastering gypsum green process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102173713A true CN102173713A (en) | 2011-09-07 |
Family
ID=44517011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110054802 Pending CN102173713A (en) | 2011-03-09 | 2011-03-09 | Ardealite-based plastering gypsum green process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102173713A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198351A (en) * | 2015-10-28 | 2015-12-30 | 雷志刚 | Manufacturing method for gypsum-based tile binder |
| CN107986730A (en) * | 2017-12-11 | 2018-05-04 | 洛阳名力科技开发有限公司 | Environmentally friendly plastering material |
| CN108751897A (en) * | 2018-06-29 | 2018-11-06 | 重庆市搏双建材有限公司 | It is a kind of to prepare the method for enhancing land plaster, enhancing land plaster and brushing gypsum |
-
2011
- 2011-03-09 CN CN 201110054802 patent/CN102173713A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 《新型建筑材料》 20051031 王波 磷石膏基粉刷石膏的绿色工艺设计 , * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105198351A (en) * | 2015-10-28 | 2015-12-30 | 雷志刚 | Manufacturing method for gypsum-based tile binder |
| CN107986730A (en) * | 2017-12-11 | 2018-05-04 | 洛阳名力科技开发有限公司 | Environmentally friendly plastering material |
| CN108751897A (en) * | 2018-06-29 | 2018-11-06 | 重庆市搏双建材有限公司 | It is a kind of to prepare the method for enhancing land plaster, enhancing land plaster and brushing gypsum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110907 |